In the 1970s the Palestinians in Jordan staged a revolt against their hosts the Hashmite Kingdom of Jordan. The Jordanian King Hussein responded with a crackdown that killed some 25,000 of them. Even though the current King (Hussein’s son) is married to a Palestinian I am sure he’s not anxious for a repeat of that. The Queen will make some sympathetic noises in general support of Palestinian issues but that’s all that will happen. The Jordanian tribes that support the King and the Palestinians do not like each other and never have. They are very different culturally.
They got booted from Kuwait when they sided with Saddam after the invasion. Talk about not knowing the room. I think most Arab countries have a quota against them.
Not to mention Palestinianx assassinated the Jordanian King, Hussein’s grandfather, as he left al Aqsa mosque.